You want to install OpenStack Folsom with Quantum and you don't know how ? This is what you are looking for !
It's easy, simple and tested. Can't wait? Go check it by yourself:
Note: Folsom + Quantum on GRE-Tunneling : is available on stable/GRE branch:
Note: Folsom + Quantum on VLAN with 3 NICs is available on master branch:
Note: Folsom + Quantum on GRE with 2 NICs is available through GRE/2NICs branch:
Note: Folsom + Quantum on VLAN with 2 NICs is available through VLAN/2NICs branch:
Note: If you want to try the above mentioned on a Virtual Environment follow :
https://github.com/mseknibilel/OpenStack-Folsom-Install-guide/blob/master/Sand-box-your-VMs.rst